防护的

Pinhole camera is used in this system and the defense device is built in. The introduction of isolated layer make the pinhole camera departs from high temperature and high pressure. Special active velamen is added to the camera to keep it clean and resist the dirt.

采用小镜头并装置防护壳，引入真空隔离层，使摄像头与高温、高压隔离，镜头上增设特殊的活性膜，可保持镜头的清洁，防止油污。

Walking routes in the staff, operating hours, railway professionals should take the necessary security measures had nothing to do with the railway staff may not be in the railways, bridges, tunnels running staff access.

在员工通道行走、作业时，铁路专业人员应采取必要的安全防护措施，与铁路无关人员不得在铁路上、桥梁上、隧道内的员工通道行走。

But sometimes, water hammer protection works are very difficult to construct because of the limitation of poor construction conditions.

由于受施工条件的限制，水锤防护措施的安装施工有时非常困难，往往需要作适当调整。

In this article a self-cycled steady tube flow apparatus was designed and built in order to study the physical process and mechanism of water hammer occurrence.

对水击的研究主要有两个方向，一是研究水击过程机理及预测方法[1 ]，二是研究水击的防护方法及其设计_6 。

The paper studies the shortage of traditional watercourse protection mode,the development and present research con- dition for ecological protection in inland and abroad.

主要研究了传统河道护坡方式的缺点及生态防护在国内外的发展及其现状。

Due to the design of the weatherproof call station in protection degree IP 65 it is ideal for outdoor use.

鉴于它的防风化设计，防护等级达到IP65，是户外使用的最佳首选。

To change this kind of condition, should offer weight for spin workingwoman above all light, wholesome performance is good reach the structural pattern that has demand of can contented job and physical machinery function defend shoe.

为了改变这种状况，首先应为纺织女工提供重量轻、卫生性能好及具有能满足工作要求的结构款式和物理机械性能的防护鞋。

Zinc Nickel electrodepositing process and corrosion resistance of Zinc Nickel obtained in a chloride bath with or without rare earth compounds are investigated.

锌—镍合金镀层具有耐蚀性高、低氢脆性和与基体的结合力好等特性，是良好的防护性镀层。

Toxoplasmosis is zoonosis. The effective integrated control measure is to change people's bad habit and arouse their safety consciousness.

结论弓形虫是人畜共患病，应采取有效的综合防制措施，加强宣传，改变人们的不良习惯，提高个人防护意识，可降低人群弓形虫感染。

Reflective and Absorptive anti-laser Film for 1064 nm, 532 nm, and 680 nm Wavelengths

1064，532和680nm波长的反射－吸收复合型防护膜的研制

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。